"(Tuesday) is the anniversary of a terrible day in the life of our family, and one we will never forget," said Anderson's sister Barbara Young. "This has been a horrible tragedy in our lives and we ask for the continued prayers and support of the public as we go forward in our continuing search for justice in the horrific death of our brother and son."

Deryl Dedmon, Dylan Butler and John Aaron Rice pleaded guilty March 22 in U.S. District Court to hate crime charges related to Anderson's death. Sentencing was set for June 8, but has been delayed. A federal judge said that a new date for the sentencing will be unsealed at least 14 days before the sentencing.

Anderson, 49, was run over with a pickup truck in Jackson on June 26, 2011, outside Metro Inn on Ellis Avenue.

Dedmon pleaded guilty to a murder charge in March in Hinds County Circuit Court and was sentenced to two life sentences under Mississippi's hate crime statute.

"I was young. I was dumb. I was ignorant. I was full of hatred and strife," Dedmon said in court in March.

In the wake of the slaying, then-Jackson City Councilman Kenneth Stokes called for the Metro Inn to close its doors.

"Everything from drugs to prostitution, all kinds of things been going on there," Stokes said.

Last weekend, Jackson police arrested three people at the motel in a prostitution sting.

Stokes, who's now a Hinds County supervisor, said he still wants the city to shut it down and he plans to look into it again.

"I'm going to ask the (District Attorney's) Office to make sure everything is above board, make sure that everything is legal."

Metro Inn managers said they have no comment.

Prosecutors have said that there could be more arrests in Anderson's death.

"Although the case is not complete -- the case is still under investigation -- but we've come a very long way, especially within a year's time," said Hinds County District Attorney Robert Smith. "The family is very pleased with what's going on."

The Anderson family's attorney said they're still waiting for justice.

"They understand it takes time," said attorney Winston Thompson. "They are pleased with the three that have pleaded guilty. Every indication is that from the Justice Department, the FBI, they are still pursuing any and all individuals that were involved."